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Diffstat (limited to 'source/blender/freestyle/intern/winged_edge/Curvature.h')
| -rwxr-xr-x | source/blender/freestyle/intern/winged_edge/Curvature.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/source/blender/freestyle/intern/winged_edge/Curvature.h b/source/blender/freestyle/intern/winged_edge/Curvature.h new file mode 100755 index 00000000000..214a32ca922 --- /dev/null +++ b/source/blender/freestyle/intern/winged_edge/Curvature.h @@ -0,0 +1,156 @@ + +/* GTS - Library for the manipulation of triangulated surfaces + * Copyright (C) 1999 Stéphane Popinet + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __CURVATURE_H__ +#define __CURVATURE_H__ + +# include "../system/FreestyleConfig.h" +# include "../system/Precision.h" +# include "../geometry/Geom.h" +using namespace Geometry; + +class WVertex; + +class LIB_WINGED_EDGE_EXPORT CurvatureInfo +{ +public: + + CurvatureInfo() + { + K1 = 0.0; + K2 = 0.0; + e1 = Vec3r(0.0,0.0,0.0); + e2 = Vec3r(0.0,0.0,0.0); + Kr = 0.0; + dKr = 0.0; + er = Vec3r(0.0,0.0,0.0); + } + + CurvatureInfo(const CurvatureInfo& iBrother){ + K1 = iBrother.K1; + K2 = iBrother.K2; + e1 = iBrother.e1; + e2 = iBrother.e2; + Kr = iBrother.Kr; + dKr = iBrother.dKr; + er = iBrother.er; + } + + CurvatureInfo(const CurvatureInfo& ca, const CurvatureInfo& cb, real t) { + K1 = ca.K1 + t * (cb.K1 - ca.K1); + K2 = ca.K2 + t * (cb.K2 - ca.K2); + e1 = ca.e1 + t * (cb.e1 - ca.e1); + e2 = ca.e2 + t * (cb.e2 - ca.e2); + Kr = ca.Kr + t * (cb.Kr - ca.Kr); + dKr = ca.dKr + t * (cb.dKr - ca.dKr); + er = ca.er + t * (cb.er - ca.er); + } + + real K1; // maximum curvature + real K2; // minimum curvature + Vec3r e1; // maximum curvature direction + Vec3r e2; // minimum curvature direction + real Kr; // radial curvature + real dKr; // radial curvature + Vec3r er; // radial curvature direction +}; + +class Face_Curvature_Info{ +public: + Face_Curvature_Info() {} + ~Face_Curvature_Info(){ + for(vector<CurvatureInfo*>::iterator ci=vec_curvature_info.begin(), ciend=vec_curvature_info.end(); + ci!=ciend; + ++ci){ + delete (*ci); + } + vec_curvature_info.clear(); + } + vector<CurvatureInfo *> vec_curvature_info; +}; + +bool LIB_WINGED_EDGE_EXPORT gts_vertex_mean_curvature_normal (WVertex * v, + Vec3r &n); + +bool LIB_WINGED_EDGE_EXPORT gts_vertex_gaussian_curvature (WVertex * v, + real * Kg); + +void LIB_WINGED_EDGE_EXPORT gts_vertex_principal_curvatures (real Kh, + real Kg, + real * K1, + real * K2); + +void LIB_WINGED_EDGE_EXPORT gts_vertex_principal_directions (WVertex * v, + Vec3r Kh, + real Kg, + Vec3r &e1, + Vec3r &e2); + +/* + * OGF/Graphite: Geometry and Graphics Programming Library + Utilities + * Copyright (C) 2000-2003 Bruno Levy + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * If you modify this software, you should include a notice giving the + * name of the person performing the modification, the date of modification, + * and the reason for such modification. + * + * Contact: Bruno Levy + * + * levy@loria.fr + * + * ISA Project + * LORIA, INRIA Lorraine, + * Campus Scientifique, BP 239 + * 54506 VANDOEUVRE LES NANCY CEDEX + * FRANCE + * + * Note that the GNU General Public License does not permit incorporating + * the Software into proprietary programs. + */ + namespace OGF { + + class NormalCycle ; + + void LIB_WINGED_EDGE_EXPORT compute_curvature_tensor( + WVertex* start, double radius, NormalCycle& nc + ) ; + + void LIB_WINGED_EDGE_EXPORT compute_curvature_tensor_one_ring( + WVertex* start, NormalCycle& nc + ) ; + } + + +#endif /* __CURVATURE_H__ */ + |